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Troubleshooting

USB Adapter Installation Problems

If your computer cannot find the Cheetah Wireless-3501C USB Adapter or the network 
driver does not install correctly, check the following items:

Make sure the adapter is connected to the USB port.

Try the adapter in another USB port. If this also fails, try using another WN3501C 
wireless adapter that is known to operate correctly.

Make sure your computer is using the latest BIOS.

If there are other network adapters in the computer, they may cause conflicts. Disable 
or remove the other adapters from the computer and test the wireless adapter 
separately.

Check for a defective computer or USB port by trying the adapter in another computer 
that is known to operate correctly.

If there are still difficulties, remove the wireless adapter. Delete the file “Vnetusbr.sys” 
from:

c:\windows\system (in Windows 98/Me) 
c:\winnt\system32\drivers (in Windows 2000)
c:\windows\system32\drivers (in Windows XP)
Click “Start/Settings/Control Panel.” Delete the adapter from the network 
configuration menu. Restart the PC and reinstall the adapter.

Network Connection Problems

If the LED on the USB adapter is not lit, or if you cannot access network resources from 
the computer, check the following:

Make sure the correct software driver is installed. Try reinstalling the driver.

Make sure the computer and other network devices are receiving power.

The access point you want to connect to may not be functioning correctly. Try using 
another access point.

If you cannot access a Windows or NetWare service on the network, check that you 
have enabled and configured the service correctly. If you cannot connect to a particular 
server, be sure that you have access rights and a valid ID and password.

If you cannot access the Internet, be sure you have configured your system for TCP/IP. 

Summary of Contents for Cheetah Wireless-3501C

Page 1: ...Cheetah Wireless 3501C USB Adapter Quick Installation Guide...

Page 2: ......

Page 3: ...Quick Installation Guide Cheetah Wireless 3501C USB Adapter 11 Mbps Wireless USB Adapter...

Page 4: ...more Drive 08 05 06 Orchard Towers Rear Block Singapore 229594 Phone 65 238 6556 Fax 65 238 6466 Internet www acctontech com Copyright 2003 by Accton Technology Corporation All rights reserved No part...

Page 5: ...ptional 4 Attaching the Velcro Optional 4 Attaching the USB Cable 4 Driver Installation 5 Windows 95 98 Me 2000 Driver Installation 5 Setting Wireless Properties 7 Windows XP Driver Installation 18 Co...

Page 6: ...main 30 Troubleshooting 31 USB Adapter Installation Problems 31 Network Connection Problems 31 Compliances 33 Federal Communication Commission Interference Statement 33 CSA Statement Canada 34 VCCI Cl...

Page 7: ...alling additional Wireless AP Bridges no wires System Requirements Before you install the Cheetah Wireless 3501C USB Adapter verify that your system meets the following requirements An available USB p...

Page 8: ...stallations and open areas where wiring is difficult to employ Frequently changing environments Retailers manufacturers and banks who frequently rearrange the workplace and change location Temporary L...

Page 9: ...ator as described in the following table Multi choice Mounting Clip The WN3501C USB adapter is supplied with a multi choice mounting clip The clip may be slipped onto a belt or other convenient locati...

Page 10: ...el the protective paper off the Velcro circles and firmly press the circles into the circular holes at the rear of the clip 2 Temporarily hold the WN3501C in the desired location and check the signal...

Page 11: ...find that the instructions here do not exactly match your version of Windows This is because these steps and screenshots were created from Windows 98 Windows 95 Windows Millennium Edition and Windows...

Page 12: ...click Next or Click on Advanced for Infrastruture or Ad Hoc network environments SSID The Service Set ID This should be set to the same value as other wireless devices in your network Channel The rad...

Page 13: ...insert the Windows 98 CD and click OK 6 Click Finish to complete the driver installation You may be asked to restart the computer Click Yes Setting Wireless Properties 1 Click Start Settings Control P...

Page 14: ...he network protocols you wish to use If you install TCP IP be sure to set the appropriate Gateway DNS Server and Domain for your network If you install an IPX SPX compatible protocol then you also nee...

Page 15: ...Setting Wireless Properties 9 7 On the Advanced tab you will find a list of properties The 802 11 Power Save option allows you to enable the power saving mode for reducing power loading...

Page 16: ...ps Wireless devices set the Authentication Type to Shared Key Products from some other vendors may use the setting Open System Use the same setting as the other devices in your network 9 Select the ba...

Page 17: ...ing Wireless Properties 11 10 The Beacon Period 20 1000 k s option allows the wireless devices to maintain contact with each other The beacon signal may also carry power management information Default...

Page 18: ...e Channel to the same radio channel as that used by the other wireless clients in your group However if you are connecting to a network via an access point the adapter will automatically set the chann...

Page 19: ...ized access For more secure data transmissions set encryption to 128 bit or 64 bit The 128 bit setting gives a higher level of security The setting must be the same for all clients in your wireless ne...

Page 20: ...o which you want to connect The Accton access point default is WLAN If you will be roaming among multiple access points with different BSS IDs a value of ANY will allow connection to any ESSID 14 Set...

Page 21: ...able the International Roaming for mobile workers roaming in an infrastructure network More than one access point may be configured with the same SSID to create an Extended Service Set ESS See Roaming...

Page 22: ...eetah Wireless 3501C USB Adapter 16 16 Set the station operation mode to 802 11 Ad Hoc for network configurations that do not have an access point or to Infrastructure for connecting to an access poin...

Page 23: ...Preamble Enabling it can boost your throughput Preamble Type offers a drop down list with three options Auto Long or Short If you are not sure whether all the clients and access point radios in your w...

Page 24: ...ate is the data transmission reception rate setting It can be set to Auto 1 Mbps 2 Mbps 5 5 Mbps or 11 Mbps Usually this should be set to Auto In a radio frequency hostile environment a lower rate can...

Page 25: ...ds a CTS Clear to Send frame to acknowledge the right of the sending station to send data frames The access points contending for the medium may not be aware of each other The RTS CTS mechanism can so...

Page 26: ...sed on the RC4 encryption algorithm The security keys are four 10 digit keys for the 64 bit WEP setting and one 26 digit key for the 128 bit WEP setting WEP must be set in the configuration utility an...

Page 27: ...Properties 21 21 WEP Key to use shows the key that will be used WEP KEY 1 4 as shown on the previous screen for encryption 22 Click OK to exit the open screens and click Yes to restart the computer i...

Page 28: ...installation CD into your PC s CD ROM drive 2 Plug the Cheetah Wireless 3501C USB Adapter into your PC s USB port 3 Windows XP will automatically detect the new hardware and prompt you to install the...

Page 29: ...Installation 23 5 Check Don t search I will choose the driver to install and click Next 6 Click Have Disk and the Install From Disk screen will open 7 Type E driver usb setup assuming your CD drive i...

Page 30: ...gh the software is fully compatible with Windows XP it has not yet been Logo tested by Microsoft On the Hardware Installation screen click Continue Anyway 9 After the software has been installed click...

Page 31: ...nish the installation Using the Wireless USB Utility in Windows 95 98 Me 2000 and XP Once the installation is complete the configuration utility can be accessed by selecting the Accton WN3501C WLAN US...

Page 32: ...version information Status When you open the wireless USB utility the information window for the WN3501C is shown as in the figure below The Status page shows the network status of the wireless adapt...

Page 33: ...access points with different BSSIDs a value of ANY will allow connection to any SSID Tx Rate Indicates the data transmission rate Select an appropriate transmission speed Lower speeds will give better...

Page 34: ...Cheetah Wireless 3501C USB Adapter 28 Site Survey The Site Survey screen displays all access points in the wireless LAN You can choose one of them to connect to by double clicking on an entry...

Page 35: ...digit keys for the 64 bit WEP setting and one 26 digit key for the 128 bit WEP setting Create with Passphrase Security keys for WEP encryption are generated from a passphrase string so you must use t...

Page 36: ...y If Shared Key is enabled one shared key should be defined in the Default Key ID Advanced If you are not sure whether all the clients and access points in your wireless network support the Short RF p...

Page 37: ...Using the Wireless USB Utility in Windows 95 98 Me 2000 and XP 31 Version This screen displays the driver firmware and utility version numbers...

Page 38: ...r small departmental or SOHO LANs Infrastructure for enterprise LANs Network Topologies Ad Hoc Wireless LAN An ad hoc wireless LAN consists of a group of computers each equipped with a wireless adapte...

Page 39: ...a a radio link or access other computers or network resources in the wired LAN infrastructure via the access point The infrastructure configuration not only extends the accessibility of wireless PCs t...

Page 40: ...point may be configured with the same SSID to create an Extended Service Set ESS By placing the access points so that a continuous coverage area is created wireless users within this ESS can roam free...

Page 41: ...ile Vnetusbr sys from c windows system in Windows 98 Me c winnt system32 drivers in Windows 2000 c windows system32 drivers in Windows XP Click Start Settings Control Panel Delete the adapter from the...

Page 42: ...s well as local environmental interference that may impact your actual distances and cause you to experience distance thresholds far lower than those posted below If you have any questions or comments...

Page 43: ...and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help FCC Caution To a...

Page 44: ...tibility and 73 23 EEC for electrical equipment used within certain voltage limits and the Amendment Directive 93 68 EEC For the evaluation of the compliance with these Directives the following standa...

Page 45: ...odulation 3 V m Power frequency magnetic field immunity test according to EN 61000 4 8 1993 1 A m at frequency 50 Hz Voltage dips short interruptions and voltage variations immunity test according to...

Page 46: ...2 412 2 462 GHz Europe ETSI 2 412 2 472 GHz Japan 2 412 2 484 GHz Sensitivity 1 2 5 5 11 Mbps 90 88 83 80 dBm min Modulation 1 2 5 5 11 Mbps BPSK QPSK CCK CCK Output Power 15 dBm minimum 17 dBm Typica...

Page 47: ...ification revision 1 1 Compliances FCC Class B ARIB STD33 T66 UL1950 CSA22 2 NO 950 BSMI and DGT and IC CISPR 22 Class B Software NDIS Driver Windows 98 Windows Me Windows 2000 Windows XP NDIS Utility...

Page 48: ...ransmission Preamble Type Some access points and client card drivers have a radio setting for Short RF Preamble If all the clients and access points in your wireless network have this feature then ena...

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Page 50: ...WN3501C F1 0 E052003 R01...

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